Guyana

Anti-Personnel Mine Ban Convention
Signature (UN) 4 December 1997  
Deposit of instruments of ratification (UN) 5 August 2003  
Arms Trade Treaty
Signature (UN) 3 June 2013  
Deposit of instruments of ratification (UN) 4 July 2013  
Biological Weapons Convention
Signature (Washington) 3 January 1973  
Deposit of instruments of ratification (Washington) 26 March 2013  
Chemical Weapons Convention
Signature (UN) 6 October 1993  
Deposit of instruments of ratification (UN) 12 September 1997  
Comprehensive Nuclear-Test-Ban Treaty
Signature (UN) 7 September 2000  
Deposit of instruments of ratification (UN) 7 March 2001  
Convention on Cluster Munitions
Deposit of instruments of accession (UN) 31 October 2014  
Inter-American Convention on Firearms
Signature (OAS) 14 November 1997  
Deposit of instruments of ratification (OAS) 9 June 2008  
International Convention for the Suppression of Acts of Nuclear Terrorism
Signature (UN) 15 September 2005  
Outer Space Treaty
Signature (Washington) 3 February 1967  
Treaty of Tlatelolco
Signature to Resolution 267 to the Treaty of Tlatelolco (Mexico City) 16 January 1995  
Signature (Mexico City) 16 January 1995  
Signature to Resolution 268 to the Treaty of Tlatelolco (Mexico City) 16 January 1995  
Signature to Resolution 290 to the Treaty of Tlatelolco (Mexico City) 16 January 1995  
Deposit of instruments of ratification (Mexico City) 16 January 1995  
Deposit of instruments of ratification of Resolution 290 to the Treaty of Tlatelolco (Mexico City) 16 January 1995  
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Deposit of instruments of accession (Washington) 19 October 1993